Reversible latch



(No Model.) 2SheetsSheet 1.

G. S. JENNINGS. Reversible Latch.

No. 231,171. Patented Aug. 17,1880.

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K PETERS, PHOTO-l ITIMGRNPHER, WASHINGTON. D. C.

(Ho Model.) ZSheets-Sheet 2. 0. S. JENNINGS. Reversible Lat-0h.

No. 231,171. Patented Aug. 17, 1880.

NFETERS, PKOTO-LITHGGRAFHER, WASHINGTON. D

UNITED STATES Erica.

PATENT CHARLES S. JENNINGS,'OF NEW HAVEN, ASSIGNOR TO THE PARKER &WHIPPLE COMPANY, OF WEST MERIDEN, CONNECTICUT.

SPECIFICATION formingpart of Letters Patent No. 231,171, dated August117, 1880.

Application filed May 22, 1880.

To all whom it may concern Be it known that I, CHARLES S. JENNINGS, acitizen of the United States, residing at New Haven, in the county ofNew Haven and State of Connecticut, have invented certain new and usefulImprovements in Reversible Knob- Latches, (Case K5) and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

This invention relates to that class of reversible latches in which thesame spring is used to shoot the latch-bolt and to force the pivotedcatch into engagement therewith.

Thenature of said invention consists in the peculiar construction andcombination of devices hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 represents an elevation of mylatch mechanism without the slide. Fig. 2 represents a detail view ofthe tail-piece or yoke and-the catch pivoted thereto. Fig. 3 representsa detail view of the detachable and reversible latchbolt. Fig. 4represents a rearview of the yoke. Fig. 5 represents an elevation of mylatch mechanism with 'the slide, and Fig. 6 represents a detail view ofthe slide hereinafter described.

A designates the casing which contains the latch mechanism; B, the hubof the knobspindle; O, the yoke or tail-piece, which is operated by saidhub D, the latch-bolt, which sets in the shank of said yoke I E, thecatch, which looks it there, and F the spring, which bears against thecatch, simultaneously causing said locking and also the shooting of thebolt. The engagement of the hub and yoke or tail-piece is, as usual, bymeans of interlocking pairs of horns or lugs, so that the latch-boltwill be retracted whichever way the knob is turned.

Yoke G has a longitudinal recess, 0, formed in the back of its shank, asshown in Fig. 4, which recess receives a fixed stop, a, formed on casingA. This stop allows endwise motion of said yoke to a sufficient extentfor shooting and withdrawing the latch-bolt, which (No model.)

works with said yoke as one piece. The face of the flat stem or shank ofsaid yoke is provided with a raised rim, G which is open at its outerend for the insertion and withdrawal of the latch-bolt D. An opening isalso left on top at 0 Fig. 2, for the play of pivoted catch E. Thiscatch is of approximately rectangular form, its front limb, E, beingvertical and raised or bent out of the plane of the restof the catch, soas to extend across the boltD and rim 0 This limb E acts as a guide andbrace for said latch-bolt. Said catch is pivoted a little behind itsangle to a pin, 0, on a lug, c, integral with said yoke. The rear end ofsaid catch is provided with a stud, e, which may pass out through asuitably-shaped slot in the front of easing A; also, with a. broadV-shaped tooth, E, which passes into the space within rim 0, for thepurpose of outering one Of the two corresponding notches d d formed,respectively, in the upper and lower edges of bolt D. This bolt is flat,and it is constructed to fit the space inclosed by rim 0*, its rear end,D, beyond said notches d 01, having approximately the shape of atruncated arrow-head. The spring F bears against a lug on the rear sideof limb E, and tends first to force tooth E into engagement with thenotched bolt D, and then to throw said bolt, yoke, and catch all forwardas one piece.

To reverse said bolt, first raise the catch out of engagement with it,then draw said bolt out of the casing, turn it until the other notch isuppermost, release the catch, and the spring F effects the locking ofthe bolt to the yoke, as before. This operation can be readily effectedwithout opening the casing.

Instead of operating stud 6 directly, I find it advantageous to employ aslide, G, Figs. 5 and 6, which is recessed at 9, so as to engage withsaid stud, and provided with a hooked upper end, g, which protrudesthrough the top of said casing. The lower end of said slide is guided bylug or recessed block E, Fig. 6, which is formed with the casing orrigidly attached thereto. When this slide is used it is not necessarythat stud 6 should protrude through the casing.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-- tcr serving to guide and bracethe bolt, substantially as set forth.

In testimony whereof I afi'ix my signature in presence of two witnesses.

CHARLES 8. JENNINGS.

Witnesses:

JOHN L. RUTHERFORD, H. J. l. WHIPPLE.

